Results 31 to 40 of about 9,187 (159)

The study of the electrical properties of nano insulating oil for submarine cables [PDF]

open access: yes
At present, the alkylbenzene insulation oil for submarine cables of 220kV and above in China relies on imports, which poses high maintenance costs and supply interruption risks.
Zhifeng Liu   +6 more
core   +2 more sources

Surface tracking in the inter-phase region of large transformers

open access: yes, 2008
Transmission and distribution operators throughout the world manage significant populations of ageing large transformers which use mineral oil and paper as the dielectric insulation.
Mitchinson, Peter Mark
core  

RAPID ASSESSMENT OF TRANSFORMER INSULATING VEGETABLE OIL QUALITY USING FTIR SPECTROSCOPY AND CHEMOMETRICS

open access: yes, 2022
Although analytical techniques to assess the degradation of transformer insulation systems are well established, it is essential to develop fast and effective methodologies for monitoring the quality of power transformer insulating fluid.
Mariana Ramos Almeida (10380412)   +11 more
core   +1 more source

Study of surface discharge behaviour at the oil-pressboard interface

open access: yes, 2013
This thesis is concerned with the surface discharge behaviour at the oil-pressboard interface. For large transformers this is classified as a serious failure mode because it can lead to catastrophic failure under normal AC voltage operating conditions ...
Zainuddin, H
core  

Caracterização experimental de propriedades dielétricas de misturas óleo-refrigerente [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.O conhecimento de propriedades elétricas de misturas de fluidos é necessário quando se deseja ...
Sedrez, Paulo Christian
core  

Determination of better insulating oil for power transformer oil application using Analytical Hierarchy Process (AHP)

open access: yes, 2022
The Analytical Hierarchy Process (AHP) which was developed by Saaty is a decision-making tool in the year of 1970s. The system is able to solve the complex analysis which could not be performed by the human brain.
Rosyid Ridlo, Al Hakim   +3 more
core  

Quantitative Analysis Ageing Status of Natural Ester-paper Insulation and Mineral Oil-paper Insulation by Polarization/Depolarization Current

open access: yes, 2012
Polarization and Depolarization Current (PDC) technique is an effective tool to assess the condition of oil-paper insulation system in power transformers. So far the PDC behaviors of mineral oil-paper insulation have been widely investigated.
Yang, Lijun   +4 more
core  

Micronization of catalytic systems in receiving the bituminous insulating materials for protection of the main pipelines [PDF]

open access: yes, 2014
Pipelines are the most effective and safe way of oil, gas and oil products transportation on considerable distances. The durability and fail-safety of operation of pipelines directly depends on efficiency of their anticorrosive protection.
Kemalov A., Kemalov R.
core  

Assessing Ageing Condition of Mineral Oil-Paper Insulation by Polarization/Depolarization Current

open access: yes, 2011
Accurately assessing the ageing status of oil-paper insulation in transformer is essential and important. Polarization and Depolarization Current (PDC) technique is effective in assessing the condition of oil-paper insulation system.
Liao, R, Hao, J, Yang, L, Ma, Z, Chen, G
core  

Effect of thermally aged oil on space charge dynamics in oil/paper insulation system

open access: yes, 2011
The formation of space charge in oil/paper insulation system can lead to material degradation in the high electrical field region and affect system reliability.
Hao, Jian, Liao, Ruijin, Chen, George
core  

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